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Ksju [112]
3 years ago
9

19. 4x-y+2z = 8x+y-4 Find x

Mathematics
1 answer:
Varvara68 [4.7K]3 years ago
4 0

Answer:

x = \frac{4-2y+2z}{4}

Step-by-step explanation:

4x-y+2z = 8x+y-4

4x-8x-y+2z = 8x - 8x +y-4

-4x -y +2z= y-4

-4x -y+y +2z = y+y-4

-4x +2z = 2y-4

-4x+2z-2z = 2y-2z-4

-4x = 2y-2z-4

x= \frac{2y-2z-4}{-4} = \frac{4-2y+2z}{4}

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a. 22. 79 - amount

b. 129   -   amount

c. 358. 3  - base

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<h3>How to determine the values</h3>

It is important to note that a percentage is the number or ratio expressed as a fraction of 100.

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